Efficient transmission in cascaded photonic crystal waveguides via a strong coupling effect |
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Authors: | Ronggang Liu Bingzheng Gai |
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Affiliation: | Department of Astronautic Science and Mechanics, P.O. Box 344, Harbin Institute of Technology, Harbin 150001, China |
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Abstract: | A design of cascaded photonic crystal waveguide is proposed in this paper inspired by the work of Tang et al. [D. Tang, L. Chen, W. Ding, Appl. Phys. Lett. 89 (2006) 131120]. In contrast to a conventional waveguide source, a plane wave source is applied in the current design. We show that an efficient guide mode in the photonic band gap can be achieved. The same idea also works for a slight variation by defects introduction in the photonic crystal. Finally, the strong coupling effect present in the cascaded waveguides is demonstrated by an analogy with photonic quantum wells. |
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Keywords: | 42.70.Qs 42.79.Gn 42.25.Bs |
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